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serious water shortages?
Quoteserious water shortages?And what about the poisonous levels of oxygen in our atmosphere, as a result, and the mysterious hydrogen explosions everywhere?
Using hydrogen as an energy-transport system is much better than HT electricity lines and with much lower losses.
For a start these things need sunlight. most of those that escaped would probably end up buried.
Then there's the scale of things, imagine that we decide to replace our entire energy supply with this new catalyst. In order to work it will have to produce hydrogen at a rate that's equivalent to our current use of fossil fuels (more or less). In doing so it will produce oxygen equivalent to that consumed by burning fossil fuels. Since mankind started to exploit oil and coal we have altered the CO2 concentration in the air by a few tens of parts per million; presumably we have had a similar effect on the O2 conc but that's more difficult to measure.
If we then accidentally set all this catalyst free it would continue to produce O2 and H2. If it were as well organised as it would be in a power plant it would make the gases at the same rate. So over the course of 300 years it would make a difference to the atmosphere that's too small to measure accurately.
OK, how much water would it use up; well that's the same question as was answered here"The mass of water in the oceans is pretty huge, compared with the mass of the atmosphere - 10m of water is equivalent to 1 atmosphere - so an equivalent mass. If we lost 10m of water - well, more because of the areas of land, that would about double the amount of oxygen.Twice that and we'd be near your 50% level for Oxygen poisoning."but looked at the other way round. Even if this catalyst turned half the atmosphere into oxygen and hydrogen it would only use up a small fraction of the water.
Then there's the question of what would really happen to the hydrogen and oxygen in the air- most of them would simply recombine to produce water.